Move global state API out of global_state object. (#4857)

doc/source/development.rst

@@ -60,7 +60,7 @@ Python script with the following:
 .. code-block:: bash
 
  RAY_RAYLET_GDB=1 RAY_RAYLET_TMUX=1 python
- 
+
 You can then list the ``tmux`` sessions with ``tmux ls`` and attach to the
 appropriate one.
 
@@ -71,14 +71,14 @@ allow core dump files to be written.
 
 Inspecting Redis shards
 ~~~~~~~~~~~~~~~~~~~~~~~
-To inspect Redis, you can use the ``ray.experimental.state.GlobalState`` Python
-API.  The easiest way to do this is to start or connect to a Ray cluster with
-``ray.init()``, then query the API like so:
+To inspect Redis, you can use the global state API. The easiest way to do this
+is to start or connect to a Ray cluster with ``ray.init()``, then query the API
+like so:
 
 .. code-block:: python
 
  ray.init()
- ray.worker.global_state.client_table()
+ ray.nodes()
  # Returns current information about the nodes in the cluster, such as:
  # [{'ClientID': '2a9d2b34ad24a37ed54e4fcd32bf19f915742f5b',
  #   'EntryType': 0,